Cotton-hull separator



W. L. HANCOCK coTToN HULL sEPARAToR Jan, 21, 1925.

2 sums-sheet 1 Filed Jan. 28, 1924 IN VEN TOR.

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A TTORN E YS.

` Jan. 27, 1925. 1,524,239

W/L//AM/ .HA/WOM INVENTOR.

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Patented Jan. 27, 1925.

' P `A T EN-T OSPF ICE WILLIAM# L. HANCOCK, C'F DALLAS, TEXAS, ASSIGNCR- TO THE MURRAY COMPANY, OF

DALLAS, TEXAS, A CORPORATION OF TEXAS l COTTON-.HULL SEPARATOR.

Application filled January 28, 1924,

To all whom t may concern@ i -Beit known that I, WILLIAM L. HANCOCK, N a icitizenof the United States, residing at f Dallas, in the county of Dallas and State of Texas, have invented certainnew and useful Improvements in Cotton-Hull Separatore, of which vthe following is aspecitioation.

.My invention isnan improvement `in ina.- ,chines for cleaning seed cotton from burrs and the like, andto open and to remove hulls Ity A mayalso be used elleetively for removing, grabotsor locks ol' cotton from cotton:'seed,before the delinting process and -toopen, and rework lint cotton, it desired.

In the drawings:

Figure Lis, a cross-sectional eleva-tion;

Figure 2 is a ,section f,on line 2 2 of Figure l;

Figure, lis a cross section, on an enlarged scale, showing the preferred arrangement of spikes on roller D, as on line 3--3 of Figure 2;

Figure A is a top plan view; and

Figures 5 and 6 are modifications, showing respectively air blast and brush removal of the lint cotton from the belt.

The casing X which encloses and supports the moving parts of my machine, is of rectangular shape in plan and its walls provide support for bearings for the various moving parts of the machine, as will be plain without further specification.

The main feature of my device is a belt or belts, A, carrying sharp short teeth o-r pins, a, with points inclined in the direction of movement of the belt, the operative face of the belt moving' upward at a slight angle from the vertical. As shown in the drawings there are two of these belts, A, organized so that their operative faces diverge upwards, forming two walls of a V-slraped chamber. These belts are mounted upon rollers, A', Az, at their upper and lower ends, one of the rollers for each belt being suitably actua-ted to move the belt in the direction indicated by the arrows. A driving pulley A21, for example, may be employed to actuate a roller A2 and that roller in turn to actuate through pulleys A22, the opposite roller A2 and by pulleys A23, A24 at the opposite end, pickerrolls B and feed rollers C, while rollers AL actuated by the belt A in turn actuate the agitator D and the spiral conveyor E. Preferably an idler roller F, adjustable, is employed to maintain the desired tautness of Serial No, 689,005.

ted through opening X ifalls upon the Vspiked)feed rollers, C, turning as indicated,

by which the cotton is thrown against the upwardly moving reach of the belt A, the

.slioi'l, sharp teeth of which, projecting in the direction ot' upward movement of the belt,

. engage lthe lint. rIhis throwing of the entering material by the 'feed rollers is facilitated bythe rearward inclination of the spikes c. as indicated in the cross-section ot Figure l. As the materialmoves up, with the belt A, some oie-the burrs and hulls are detached and fall downward. Those that do ,not are struck by the spikes, Y), on picker rolls B, revolving in the direction et the arrowspliigure l, the points of the spikes being rearwardly inclined, and the burrs, hulls and other loose material are Aknocked clear oitl the lint engaged by the sharp teeth on the belt A. More or less of the lint will be knocked ott by the rolls B, as some lint will cling to some of the'burrs and hulls and some is loose, and this lint will either be thrown upon the belt again by the ieed rolls C, or escaping these, will fall upon the belt, slanting inward, or will reach the agitator D which will throw the hulls and lint again on the belt till the hulls are freed. The clean hulls will then work downward to the converging lower ends of the belts A being thrown repeatedly against the belt A and will `gradually lill the space directly beneath agitator D and by the action of that `roller with its spiral flights of preferably rearwardly inclined spikes, al, will be urged to either end of the roller D and expelled from the machine through openings, al', in the side wall of the casing X. Some hulls and broken hulls, burrs and dirt and trash which get below the agitator D will pass downward to the screw conveyor E and so out of the machine. The lint which passes upward past picker rolls B is removed from the belt A by a suction air current, condensed upon the surface of the belt by a hood Y and passes by pipe Z to and through a fan, (not shown). The lint may, if desired. b-e removed by air blast apparatus or by brush. In Figure 5 I have shown an air blast installation. Pipe M confines pressure air, which is discharged through a slit against the teeth, a., on belt lll) A, in a' direction to remove the lint and carry Vit to discharge pipe N. In Figure 6, the reinoval means is av brush, O, which strips the teeth, a., and discharges the lint into pipe, P.

I have shown land described niy inaohine as of lduplex construction the two belts and eo-opeirating parts being opposed within a single case. This is: the preferred forni, but iruseful singlemachine may he constructed, by forming the easing With a wall along` the section line 2--2 in Figure l and using hut one belt and 'aiseoeiated p rts.

I claiin:

l. In a cotton. Vhull separator and opener, a. casing, having a feed opening and an exit opening; a toothed belt, supported for rotation on upper and lower rollers Within the casing, the inner tace oit the belt moving upward to the exit opening at an angle from the vertical; ay spiked roller opposite` the feed opening, to receive the entering material and throw it against the upwardly moving` hielt; a spiked roller opposite the ent opening ailjaeent the. belt to heat hack hulls an d the like while permitting lint to pass on; means to remove the lint from `the toothed belt, ineans to dispose of the :separated hulls.

2.11111 a ootton hullseparator and opener, a easing having :L i'eed opening in the top and exit openings on opposite sides; opposed toothed belts supported for rotation on upper and lower rollers within the casing, the opposed faces of each belt moving' upward to an exit opening at au angle 'from the vertical and forming the sides oli a V-shaped chain-- her; a pair of spiked rollers turning in opposite'directions, to receive the entering; ina.- terial and tlrrow it against, the upwurdlj.' -nioving toothed belts; a spilvd roller opposite each exit opening adjacent the heit to heat hack hulls and the like. While permitting lint to pass on; ineans to remove the lint. 'from the toothed heit, means to dispose ol" Vthe separated hulls.

3. As in claiin i, and having also heueath the receiving roller, a hull chamber and a epirally spiked conveyor roller, to receive the f iarated hulls and euieet thein through opennos in the wall of the casing.

L 1n claim and having also beneath Ll lr"l ll l` bv l'` the listening rollers a n1 e hun ci, tu op posed laces el the belts being spaced :unit

o forni a, longitudinal slot through which he hulls may escape.

.figned at Dallas, Texas, this twenty ser" ond day oi January, 1924.

WILLIAM L. HANCOCK. 

